Door-securing means



March 10, 1925. 1,529,594

B JACQBS DOOR SECURING MEANS Filed Jun 12 1924 2 Sheets-Sheet l 24 all n u%\ W\ March 10, 1925.

B. JACOBS DOOR SECURING MEANS Filed June 12 1924 2 Sheets-Sheet 2 Squaw Jot 3 'J ac 0b 6.

zen of the United States,

Patented Mar. 10, 1925.

BERT JACOBS, OF LA CR OSSE, WISCONSIN.

DOOR-SECURING MEANS.

Application filed .Tune 12, 1924. Serial No. 719,682.

T 0 all whom 2': may concern:

Be it known that I, BERT JACOBS, a citiresiding at La Crosse, in the county of La Crosse and State of Wisconsin, have invented certain new and useful Improvements in Door-Securing Means; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Banks and analogous institutions where large sums of money are kept and readily accessible for the transaction of business and to which the general public has free access are frequently held up during business hours and robbed, the robbers usually escapin because the entrance is unobstructe Y In accordance with the present invention the buil-din or other place to be safeguarded is rovide with a doorway which serves bot for the entrance and the exit, all other openings being guarded to prevent exit thereby. A revolving doorcontrols this doorway and must be turned to permit the passage of a person through the door openmg. The present invention provides means whereby the door may be held from rotating thereby preventing ingress to or egress from the building, said means being controllable from various points and when actuated in an emer ency operating to prevent the escape of a old-up or suspect and insuring a capture.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

While the drawings illustrate an embodiment of the invention it is'to be understood that in adapting the same to meet different conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing from the spirit of the invention.

Referring to the accom anying drawings forming a part of the app ication:

Figure 1 is a diagrammatic view showing the application of the invention,

Figure 2 is a horizontal section on the line 2-2 of Figure 3,

Figure 3 is a vertical transverse sectional view on the line 33 of Fi re 2, showing more clearly the relation of t e parts,

Figure 4 is a top plan view showing the parts on a larger scale,

I Figure 5 is an enlarged sectional detail view.

Figure 6 is a detail sectional View on the line 6-6 of Figure 5,

Figure 7 is a detail view of the switch,

Figure 8 is an enlarged sectional view of thei mounting for the brake operating screw, an

Figure 9' is a detail sectional view "on the line 9-9 of Figure 8.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

The numeral. 1 designates a doorway whereby ingress and egress is effected and said doorway is controlled by means of a revolving door 2 which normally closes and obstructs the doorway and which must be turned to admit of a person passing through the doorway in either direction, both when entering the building or place or when leaving the same. I A brake drum 3 is fast to the post 4 and a brake member 5 is in cooperative position with the brake drum to grip the same and prevent rotation of the door and thereby prevent anyone from passing through the doorway either in an attempt to enter the building or to leave the same. Thus in the event of an attempt to burglarize the bank or other institution, the door .securing means may be set, thereby preventing rotation of the door and the escape of the thief or suspect whose capture may thus be effected.

-In the preferred construction, the brake member 5 consists of a band which encircles the drum 3 and which is made fast at one end, as indicated at 6, the opposite end being extended outwardly and provided with a threaded opening to receive a screw 7 which is mounted in bearings 8. A pulley 9 or like element is fast-to the screw 7 and is connected to a corresponding element 10 so as to rotate therewith. The elements 9 and 10 are shown as pulle s and are connected by means of a drive belt 11. An electric motor 12 has the pulley 10 fast to its shaft and when the motor is in operation, the screw 7 is rotatedso as to contract the brake band 5 and gri the drum 3 and thereby pre-' vent rotation o the door 2.

The electric motor 12 is included m a C11:-

. cuit 15 which iscontrolled by means of. a

switch 13 which is normally closed, it being understood that the circuit including the motor 12 includes .a number of switches 14 To prevent binding of the screw 7 it is which are conveniently disposed. to be oper threaded into a slide 16 mounted in a guide 45 ated from determinate points so that upon 17 bolted or otherwise attached to a part of closing any one of the switches, the motor the frame 18. The guide 17 is channelled circuit is closed and the motor caused to and receives the slide 16 which is held in operate so as to' set the brake and when the place by a. keeper 19. A pair of pins 20 probrake has been set, the switch 13 is operated, jecting from the slide 16 receive an end thereby automatically breaking the circuit portion of the brake band 5as shown most and stopping the motor. To this end the clearly in Figure 4.

19 switch may be of the form detailed in Fig What is claimed is:

ure 7. Upon reference thereto, the ter- 1. Means for safeguarding abank or other minals to which the wires of circuit 15 are place containing valuables, the same con'sistfastened are indicated at 21 and 22, mounted ing of a revolving door, a brake mechanism onand insulated from the casing 23 of such for holding the door against rotation, oper- 15 switch, pivotally connected to the terminal ating means for setting the brake mecha- 21 is a movable switch arm 24 adapted to nism, the same including an electric motor engage a switch arm 25 in conducting relaand a circuit therefor containing switches tion to terminal 22. Arm 24 carries a plunglocated at determinate points so that operer 26 insulated therefrom and movable ation of an one of the switches effects an 20 through a relatively large opening 27 in cats .operation 0 the motor and a setting of the ing 23. As a result of this construction, brake mechanism to secure the door, and a when the band 5 is applied, the terminal arm circuit-breaking switch adapted to be auto- 5 thereof will strike agalnst the plunger 26 matically operated by the brake after the and thus swing the switch arm 24 out of conlatter has been set, whereby to break the 25 tact with the arm 25, thus breaking the circuit and stop the motor. electric circuit through the motor 12. Con- 2. Means for safeguarding a bank or finned movement of said plunger 26 causes other place containing valuables, the same ,t to engage a conductor arm 28 and a proconsisting of a revolving door, a brake mechection 29 carried by plunger 26 and inanism including a brake drum and a brake a0 sulated from arm 24, to engage a terminal band, a screw having threaded engagement 30. Thus a circuit is completed through with the brake band, an electric motor inwires 31 to an audible signal 32, the latter cluded in a circuit containing switches discircuit receiving the current from a batposed at determinate points, connecting ter 33. Thus after the motor has ceased means between the motor andscrew, and a 35 an the door is locked, the bell 32 will ring circuit-breaking switch adapted to be operand continue to ring until the parts are reated by the brake mechanism after the latter stored to normal position. By providing has been set to effect a stopping of the motor. 30 the motor circuit wlth a number of switches In testimony whereof I affix my signature said circuit may be closed from any one of in the presence of two witnesses.

40 a number of points, thereby effecting oper-. BERT J AOOBS ation of the door securing means whereby to Wit v revent the escape of a robber or suspect (1 E 13 m an attempted hold-up or other emergency. H; O, m 

